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Extract waveform measurements from Virtuoso simulation results. Use when measuring voltage, current, gm, gm/Id, bandwidth, settling time, or any simulation metric.
默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。
决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
直接命令不会经过审查 Prompt；运行前请先检查来源。
npx skills add https://github.com/deanyou/virtuoso-cli --skill sim-measure命令会保持在同一行。复制前请横向滚动并检查完整内容。
想先保存到本地？可下载 SkillsMP 当前能够提供的文件。
Maestro (ADE Assembler) session management and simulation. Use when: running simulations via Maestro, configuring tests/analyses/outputs, updating design variables, reading results.
Amplifier design copilot — topology selection, sizing via gm/Id lookup tables, PVT corner validation, and process-portable design. Use when designing amplifiers (OTA, opamp, comparator), selecting topology from specs, sizing transistors, or characterizing a new process node. Also triggers on keywords like amplifier, OTA, opamp, gain-bandwidth, CMRR, PSRR, slew rate.
Explore Virtuoso cellviews - list libraries, cells, instances, nets, layers, and hierarchy. Use when browsing a design, understanding circuit topology, or inspecting layout/schematic contents.
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基于 SOC 职业分类
| name | sim-measure |
| description | Extract waveform measurements from Virtuoso simulation results. Use when measuring voltage, current, gm, gm/Id, bandwidth, settling time, or any simulation metric. |
| allowed-tools | Bash(*/virtuoso *) |
Extract metrics from completed simulations via virtuoso sim measure.
virtuoso sim measure --analysis <TYPE> --expr '<EXPRESSION>' [--expr '<EXPR2>'] --format json
# Voltage at a node
virtuoso sim measure --analysis dcOp --expr 'value(VDC("/net1"))' --format json
# Drain current
virtuoso sim measure --analysis dcOp --expr 'value(IDC("/NM0/D"))' --format json
# Operating point parameter (gm, gds, vth, etc.)
virtuoso sim measure --analysis dcOp --expr 'value(getData("/NM0:gm" ?result "dcOpInfo"))' --format json
virtuoso sim measure --analysis dcOp --expr 'value(getData("/NM0:ids" ?result "dcOpInfo"))' --format json
virtuoso sim measure --analysis dcOp --expr 'value(getData("/NM0:vth" ?result "dcOpInfo"))' --format json
# Multiple measurements at once
virtuoso sim measure --analysis dcOp \
--expr 'value(VDC("/net1"))' \
--expr 'value(IDC("/NM0/D"))' \
--expr 'value(getData("/NM0:gm" ?result "dcOpInfo"))' \
--format json
# Peak voltage
virtuoso sim measure --analysis tran --expr 'ymax(VT("/OUT"))' --format json
# Minimum voltage
virtuoso sim measure --analysis tran --expr 'ymin(VT("/OUT"))' --format json
# Crossing time (settling)
virtuoso sim measure --analysis tran --expr 'cross(VT("/OUT") 0.6 1 "rising")' --format json
# Value at specific time
virtuoso sim measure --analysis tran --expr 'value(VT("/OUT") 10e-6)' --format json
# Gain at DC
virtuoso sim measure --analysis ac --expr 'value(dB20(VF("/OUT")) 1)' --format json
# Unity-gain bandwidth
virtuoso sim measure --analysis ac --expr 'cross(dB20(VF("/OUT")) 0 1 "falling")' --format json
# Phase margin
virtuoso sim measure --analysis ac --expr 'value(phase(VF("/OUT")) cross(dB20(VF("/OUT")) 0 1 "falling"))' --format json
| Function | Domain | Description |
|---|---|---|
VDC("/node") | dc | DC voltage |
IDC("/inst/term") | dc | DC current |
VT("/node") | tran | Transient voltage |
IT("/inst/term") | tran | Transient current |
VF("/node") | ac | AC voltage (complex) |
IF("/inst/term") | ac | AC current (complex) |
getData("/inst:param" ?result "dcOpInfo") | dcOp | Operating point param |
| Function | Description |
|---|---|
ymax(wave) | Maximum value |
ymin(wave) | Minimum value |
value(wave time) | Value at time/freq |
cross(wave val n dir) | Time when wave crosses val |
dB20(wave) | 20*log10(magnitude) |
phase(wave) | Phase in degrees |
bandwidth(wave level) | -3dB bandwidth |
integ(wave) | Integral over sweep range |
rms(wave) | RMS value |
average(wave) | Average value |
delay(wave1 val1 edge1 wave2 val2 edge2 n) | Propagation delay |
slewRate(wave pct1 pct2 dir) | Slew rate |
settlingTime(wave final tol) | Settling time |
# Run noise analysis first
virtuoso sim run --analysis noise --start 10 --stop 100e3 --dec 20 --timeout 120
# Spot noise at 1kHz
virtuoso sim measure --analysis noise \
--expr 'value(getData("/OUT" ?result "noise") 1e3)'
# Integrated noise (10Hz-100kHz)
virtuoso sim measure --analysis noise \
--expr 'integ(getData("/OUT" ?result "noise") 10 100e3)'
# === DC operating point ===
virtuoso sim run --analysis dc --param saveOppoint=t
virtuoso sim measure --analysis dcOp \
--expr 'value(VDC("/OUT"))' \
--expr 'value(IDC("/M1/D"))'
# === AC: gain, GBW, phase margin ===
virtuoso sim run --analysis ac --start 1 --stop 10e9 --dec 20
DC_GAIN=$(virtuoso sim measure --analysis ac --expr 'dB20(value(VF("/OUT") 1))' --format json | jq -r '.measures[0].value')
UGB=$(virtuoso sim measure --analysis ac --expr 'cross(dB20(VF("/OUT")) 0 1 "falling")' --format json | jq -r '.measures[0].value')
PM=$(virtuoso sim measure --analysis ac --expr 'value(phase(VF("/OUT")) cross(dB20(VF("/OUT")) 0 1 "falling")) + 180' --format json | jq -r '.measures[0].value')
echo "Gain=${DC_GAIN}dB GBW=${UGB}Hz PM=${PM}°"
# === Transient: slew rate, settling ===
virtuoso sim run --analysis tran --stop 20u
virtuoso sim measure --analysis tran \
--expr 'slewRate(VT("/OUT") 10 90 "rising")' \
--expr 'slewRate(VT("/OUT") 90 10 "falling")'